Blue marble: see the earth breathing. Image: Blue Marble.nasa.gov

The month of May is a time of blossoming, in the northern part of the globe. People emerge from buildings, strolling on greenways to breathe the fresh air. And it would seem that the earth does too. NASA has published a video depicting the alternation of bloom cycles; as the months cause changes in the biosphere, the earth itself is breathing.

Building the World Blog by Kathleen Lusk Brooke and Zoe G Quinn is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License